Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

81072009 (number)

81072009 is an odd 8-digits composite number following 81072008 and preceding 81072010. In scientific notation, it is written as 8.1072009 × 10^7. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 54047952 positive integers (up to 81072009) that are relatively prime to 81072009.

Interesting facts

81072009 has 8 divisors, whose sum is 112099680
The reverse of 81072009 is 90027018
Previous prime number is 27

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

Name	eighty-one million seventy-two thousand nine

Notation

Scientific notation	8.1072009 × 10^7
Engineering notation	8.1072009 × 10^6

Prime Factorization of 81072009

Prime Factorization 3 × 27 × 1000889

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81072009	Product of the distinct prime numbers

The prime factorization of 81072009 is 3 × 27 × 1000889. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 1, 62, 58, 242, 336, 8489, 8498, 87343, 90224, 239298, 504907, 2498106, 581774, 74911187, 3370136, 199410994, 445119598, 6632715977, 835889283

Basic calculations (n = 81072009)

Multiplication

n×y

n×2	162144018
n×3	243216027
n×4	324288036
n×5	405360045

Division

n÷y

n÷2	40536004.5
n÷3	27024003
n÷3	20268002.25
n÷5	16214401.8

Exponentiation

n^y

n²	6572670643296081
n³	5.3285961354734E+23
n⁴	4.3199999385246E+31
n⁵	3.5023107389607E+39

Nth Root

^y√n

²√n	9003.9996112839
³√n	432.80304910311
⁴√n	94.889407265953
⁵√n	38.174572917185

Divisors of 81072009

1, 3, 27, 81, 1000889, 3002667, 27024003, 81072009

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81072008	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	1	Returns the nth root of the product of n divisors
H	Harmonic Mean	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81072009 can be divided by 8 positive divisors. The sum of these divisors (counting 81072009) is 1, the average is 0.125.

Base conversion 81072009

Base	System	Value
2	Binary	100110101010000111110001001
3	Ternary	12122112212220000
4	Quaternary	10311100332021
5	Quinary	131223301014
6	Senary	12013353213
8	Octal	465207611
10	Decimal	81072009
12	Duodecimal	23198809
16	Hexadecimal	4d50f89
20	Vigesimal	156e009
36	Base36	1c9nk9

Cryptographic Hash Functions

md5	2945cc0de12c397759e757d2c991de74
sha1	91166d8771a89e4096a8331bf123c51f529ab28f
sha256	4e2284490fbeddb2d489d77ab7a0ec5d10f2a6271fa27827c04df8b8ee6d3c11
sha512	63d512e438bd7a4b7d7409134908aadcfea67b5029763a1b40864b343d1f61770c2dd39c6ad1e304a2046c9eb14be8940ebcc721954af61578a0ff0811cc4bcd
ripemd-160	f94718949e86820add2a8fd1219919547c1242b5

81072009 as geometric shapes

Circle

Radius = n

Diameter	162144018
Circumference	509390455.77233
Area	2.0648653807444E+16

Sphere

Radius = n

Volume	2.2320371297533E+24
Surface area	8.2594615229777E+16
Circumference	509390455.77233

Square

Length = n

Perimeter	324288036
Area	6572670643296081
Diagonal	114653134.65663

Cube

Length = n

Surface area	39436023859776486
Volume	5.3285961354734E+23
Space diagonal	140420838.65968

Equilateral Triangle

Length = n

Perimeter	243216027
Area	2.8460498739013E+15
Altitude	70210419.329841

Triangular Pyramid

Length = n

Surface area	2.8460498739013E+15
Volume	6.2798107693294E+22
Height	38217711.552211